Add drm hwc support am: eebe4a5562 am: 1ad4d16180

Change-Id: I22f937245806cc3795f8b7ce4f0ee4afdebe545f
tree: c3609901810c5636883da56924cb5c7dfe4a2102
  1. bootctrl/
  2. libhwcomposer/
  3. Android.bp
  4. OWNERS